Ardian and Verne Commit €5B to 500MW AI Campus in Île-de-France at Choose France Summit
Ardian, a Paris-based private investment firm with over $170B in assets, and its portfolio company Verne, a European low-carbon computing infrastructure operator, announced a 500MW AI data center campus in the Île-de-France region with up to €5B in committed investment. The announcement came at President Emmanuel Macron’s Choose France summit on June 1.
The campus is framed explicitly around European digital sovereignty — providing compute capacity that stays within EU jurisdiction for government, industrial, and academic workloads. Verne brings existing operational data center expertise and low-carbon power sourcing; Ardian provides the capital stack.
Scale in Context
The Ardian/Verne deal is smaller than the SoftBank commitment announced the same day at Choose France — SoftBank pledged €75B for 5GW of French AI data center capacity, with an initial €45B phase targeting 3.1GW in Hauts-de-France. The two commitments are complementary rather than competing: SoftBank is building hyperscale capacity in the north, while the Ardian/Verne campus targets the Paris metro region.
France is now the single largest destination for AI infrastructure pledges in Europe in 2026. The Macron government has used the Choose France format — an annual investment summit — to secure these commitments, offering regulatory coordination, energy access, and Macron’s direct involvement as a signal to investors.
What 500MW Buys
At modern GPU cluster density, 500MW supports approximately 100,000 to 200,000 Blackwell-class GPUs depending on cooling architecture and utilization. That is sufficient to anchor a major frontier lab’s European training cluster or to provide inference capacity for multiple large-scale enterprise deployments at the national level.
The campus is positioned as a hub for industrial partners, energy companies, technology firms, and academic institutions — closer to a sovereign compute commons than a single-tenant data center. Whether that model attracts the density of committed tenants needed to make 500MW financially viable will determine if this progresses past the announcement phase.
Verne’s existing European footprint gives the partnership a credible operational foundation. Full construction timeline and phase structure were not disclosed at announcement.